BUG: check for eddy_openmp in the right place

eddy_openmp is placed in the $FSLDIR/bin directory not the $FSLDIR directory

Author: MichielCottaar

nipype/interfaces/fsl/epi.py

@@ -592,7 +592,7 @@ def _run_interface(self, runtime):
  cmd = self._cmd
  if all((FSLDIR != '',
  cmd == 'eddy_openmp',
- not os.path.exists(os.path.join(FSLDIR, cmd)))):
+ not os.path.exists(os.path.join(FSLDIR, 'bin', cmd)))):
  self._cmd = 'eddy'
  runtime = super(Eddy, self)._run_interface(runtime)